If a macro run from either a key, or the prefix area,
changes the displayed lines in a file such that the focus
line is off the screen, THE 3.2B abends when the
CURSOR UP key is pressed.
The problem is THE forces the file to be positioned with
the same line if the CURLINE after the macro is run as
was displayed there before the macro ran (unless that
line is no longer in the DISPLAY range).
See the attached file AbendA.the for a demonstration
and a further description